Route Grade Converter
Convert climbing route grades between YDS, French, UIAA, British, and V-scale systems. Instantly translate difficulty ratings across international grading standards.
Inputs
Results
YDS Grade
5.10a
French Grade
6a
How to Use This Calculator
- Select the grading system you are converting from: YDS (5.x), French (6a/7b), UIAA (VII), British, or V-scale for bouldering.
- Enter the grade value using the numeric selector — the scale maps each grade to a comparable difficulty level.
- Read all equivalent grades simultaneously in YDS, French, UIAA, British, and V-scale.
- Use the French or UIAA equivalent when traveling to European crags or using guidebooks in those systems.
- Compare the Difficulty Level (1–10) to get an intuitive sense of where the route sits overall.
- Cross-reference with the Climbing Calorie calculator to estimate session effort at the converted grade.
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